Vocal feedback apparatus



FIG. 1 is a front view of the present invention; and

FIG. 2 is a rear view of the present invention; and

FIG. 3 is a right side view of the present invention; and

FIG. 4 is a left side view of the present invention; and,

FIG. 5 is a perspective view of the present invention.

The broken lines showing of parts of the drawings is included for the purpose of illustrating use and environment and forms no part of the claimed design. 

The ornamental design for a vocal feedback apparatus, as shown and described. 